Staple-driving mechanism.



W. A. KILMBR. STAPLE DRIVING MECHANISM. APPLICATION FILED JULYIs. 100a.

WITH ESSES W. A. KILMER. STAPLE DRIVING MECHANISM. APPLICATION FILED JULY 13. mos.

Patented May 18, 1909.

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STAPLE DRIVING MECHANISM.

APPLICATION FILED JULY 16. 1908.

922, 1 53 Patented May 13. 1909. 4 SHEETS-SHEET 3.

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W. A. KILMER. STAPLE DRIVING MBUHANISM.

APPLICATION FILED JULY 1a, 1908.

922, 153, Patented May 18, 1909.

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WILLIAM A. KILMER, OF DE KALB, ILLINOIS, ASSIGNOR TO AMERICAN STEEL & WIRE COMPANY, OF CHICAGO, ILLINOIS, A (ORPORATION OF NEW JERSEY.

STAPLE-DRIVING MECHANISM.

Specification of Letters Patent.

Patented May 18, 1909.

Application Lied July 16, 1908. Serial No. 3,848.

To all whom it may concern:

Be it known that I, WILLIAM A. KILMER, of De Kalb, Dekalb count Illinois, have invented a new and useful Staple-Driving Mechanism, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, forming part of this specification, in which Figure l is an end view illustrating m invention; Fig. 2 is a front elevation o the szune on a largerscale and with a portion of the frame of the barrel or keg broken away; Fig. 3 is a side view partly broken away; Fig. 4 is an end view also partly broken away at the opposite end of the machine from Fig. l Fig. 5 is a vertical section of the partsshown in Fig. 4; Fig. 6 is a section on the line VL- VI of Fiq. 4; Fig. 7 is a section on the line VII-VII of Fig. 3; Fig. 8 is a detail view showing the staple driving hammer orplunger; and Fig. 9 is a sectional view of the cutting and forming slide on the line IX-IK of ik [y invention has relation to staple-driving mechanism, and is designed to provide mechanism of this character by means of which sta lcs may be rapidly formed and driven.

'-he particular embodiment of my invention illustrated in the accom ying drawings has been more particular {adesigned for use in stapling hoops, kegs or rrels, is of double form for simultaneously stapling a hoop at each end of the keg or barrel. It will be understood, however, that the invention is not limited thereto. The machine illus trated is also more particularl adapted as an attachment for nailing mac -ines, but the machine can beconstructed as will readilyv appear upon its own frame, or it canbe used as an attachment to various machines.

The precise nature of my invention will be best understood by reference to the accompanying drawings, which will now be described, it being premised, however, that various changes ma be made in the detaih of construction anarrangement those skilled in the art without departing rom the s irit and sco e of my invention as defined in the ap nde claims.

As a ove stated, the machine showninthe drawin is of double form, being intended to shun taneously staple the two hoops A, B

at o posits end portions of the keg: or bar C. nasmuch as both sets of these macho!- isms are for the most part duplicates of each other, the body of the description will be confine d to the mechanism for stapling one of the hoops, and corresponding reference characters will: be applied to the like parts of both mechanisms, reference being made to any parts in which the two mechanisms may differ from each other.

The numeral 2 designates the frame of a nailing machine, having guides 3, uponwhich is mounted a vertically reciprocating crosshead 4. Near each end this cross-head has a forwardly projecting arm 5.

6 is 1 bracket which is secured to and projects from the frame 2', and which has a seat 7 for a pin or bolt 8, upon which is pivoted a guiding housing or carrier 9, said housing or carrier being capable of a limited swinging movement u on this pin or bolt as a center. Secured to t e housing or carrier is an upwardly projecting lever arm 10 having at its upper end a vertically extending cam slot composed of an upper ortion 11 and a lower portion 12, which is ofiset with respect to the upper portion 11, and which is connected therewith by the inwardly projecting portion 13. This cam slot is loosely errg ed by a roller pin-'14,. which projects from t e arm 5 of the cross-head before referred to. The form of this cam slot is such that as the roller pin 1 4 moves downwardly with the c rose-head the engagement oi said pins with the intermediate projecting portion 1 3 of the wall of the cam slot will swing the up er end of the lever arm 10' inwardly (to the heft looking at the right-hand mechanism of Fig. 2), thereby moving the housing or carrier so that its lower end will move ou twardl or to the right. The return movement o the housing or carrier and the lever arm is eil'eeted by a :pring iaconnected thereto, and to the frame the machine.

The lever arms 10 oi the two mechanisms are duplicates of each other with the exception that the cam slots are of reversed form in the-two arms, as shown in Fig. 3', so that the lower portions of the two housings or carriers will be simultaneously moved toward opponsite ends of the barrel or keg C, for a purpose hereinafter described.

The housing or carrier is provided with guides, in. which is mounted a. vertically re ciprocating: slide to having. at its lower 1rceive a form and carrier for the formed staple in the manner hereinafter described. he slide 16 is actuated in its downward movement by pawl 20 which is pivotally connected at 21 to t e cross-head, and which has a beveled edge 22. A spring 23 is also interposed between the upper end of the slide 16 and the cross-hea The pawl 20 en ages the upper end of the slide and forces it downwardly until such time as the beveled edge 22 engages with the upper end of the housing or carrier to thereby cause the pawl to be swung outwardly out of actuating enement with the slide, as shown in Fig. 2. v fien this occurs the continued downward movement of the cross-head compressesthe 8 ring 23, and at the proper time, as hereina f ter described, said s ringo eratesto com plots the movement 0 the sli e.

' 24 designates the staple-forming wire, which is fed through a guide 25 supported on the housing or carrier, and which passes between the two feed rollers 26 and 27, and thence through the guide 28, said feed rollers and the guide 28 being also supported on the carrier. The, uide 28 hasa beveled end portion 29, which coo erates with the bev-' eled end 30 (see Fig. 9 of the shear plate 17 to effect an oblique or pointing cut of the wire, thereby forming a point not only on the adjacent end of the severed staple length, but also on the forward end of the stock, whereby both ends of each staple will be re vided with a suitable driving point. onnected to the cross-head 4 is a rod 31, which, at its lower and passes through a lug 31 on a pawl-carrier 31 which'is pivoted on a shaft 32 joumaled. in a link 32 carried on the shaft of the upper feed roller 26.

33 is a spring-pressed pawl mounted on the carrier 31*, and arranged to engage the teeth of ratchet wheel 34, which is mounted on the shaft 32. The shaft 32 also carries a spur gear wheel 35, which meshes with a gear whee 3.6 on the shaft of the upper feed roller 26, said shaft also carrying a gear wheel 37 which meshes with a gear wheel 38 on the shaft of the lower feed roller 27, thereby roviding for a positive movement of each 6 the feed wheels 26 and 27. A spring 39 onthe rod 31 is seated at its lower and on the In 31 and is compressed by the downwa movement of the cross-head. Dpring this downward movement the ipawl 33 rides idly backward from the teeth 0 the ratchet wheel 34, but on the upward movement of the crosshead, the headed lower end of therod 31 engages the lug 31, and the awl 33 is positively engaged with the tee of the ratchet,

movcment thereby giving the proper feedi to the wire 24. After the step a length is sheared b the downward movement of the slide 16. efore described, the continued downward movement of said slide causes the plates 17 to bend the severed length of wire into U or staple shape over the projecting arm 40 of a former or anvil 41, which is piv oted to thehousing or carrier at 42, and which has an arm 43, which extends above the pivot 42 and is engaged by the face of the slide 16, as shown in Fig. 5. '1 his engagement of the arm 43 of the former with the slide holds the arm 40 in position while the bending of the staple is being eii'ected. After this has been effected, however, the arm 43 drops into a recess 44 in the rear face of the slide 16, so-that the continued downward movement of the slide will force the arm 40 backward out of the way.

45 designates a feeler, which is mounted to slide vertically in guides between the slide 16 and the lower portion of the lever arm 10. A spring 46 is seated within the hollow 11 per portion of this feeler about a rod 47, which extends downwardly from a lug 48 on the upper end of the slide 16, whereby as the s 1 e moves downwardly the s ring 46 will be compressed to actuate the feel zar.

49 is the staple driving hammer or plunger, which is ivotally connected at 50 to the cross-head: and which extends downwardly through guides 51 of the slide 16. This plunger or hammer has a lug or projection 52, which extends intoa recess 53 in the slide 16 (see Fig. 8), so as to permit limited independent movement of the slide and hammer.

The feeler 45 of the right-hand mechanism (looking at Fig. 2), is arranged at the front side of the housing or carrier, while that of the mechanism at the left-hand side of said re is arranged at the back 'of the housing for reater convenience.

T e o oration is as follows :The barrel or keg whose hoops are to be sta led, is supported upon a bracket 54 attache to the frame, 2, as shown in Fig. 1. The crosshead is actuated by any suitable power connection, such as a pitman 55 connected with a driven gear wheel 56. As the cross-head descends, the shear plate 17 cooperating with the fixed shear and guide late 28 cuts ofl the proper length of wire or a staple, and the continued downward movement of the slide 16 actuated by the pawl 20 bands this wire over the arm 40 of the former. The arm 43 of the former now drops into the recess 44 of the slide, allowing the former to s back and out of the path of the slide an of the nail-drivin plunger or hammer. At this time the roIFe'r pins 14 engage the portions 13 of the cam slots, thereby swinging the housings or carriers on the pins or centers 8, so that their lower ends move toward opposite ends of the barrel or keg and to one side of the line of the hoop or band to be stapled. When this has taken lace the feelers 45 have reached the keg or arre .and the rollers 14 have passed into the lower portions 12 of the cam slots. The springs15 secured to the lower ends of the seams housings or carriers now act to swing the lower ends of the housin s or carriers inwardly and thereby pull t e feelers against the outer edges of the hoops where they are held by the action of these springs.- The slide 16, now actuated by the compression of the sprin 23, the pawls 20 having been disengaged y their engagement with the "1.30? ends of the housings or carriers, forces t e plate 17 into contact with the barrel or keg, and the continued downward movement of the cross-head actuates the plungers or hammers 49 to drive the staples home. On the return stroke of the cross-head the feelers and the staple-driving hammers or plungers return to their original positions, and-the awls or-carriers resume their central positions. The rods 31 operate the ratchets 33 to effect the o eration of the feed rolls 26 and 27 to feed orward a sta le length of wire for the next staple, a ter which the operation is repeated.

It will be understood that the pa-wls 20 are released from the slide 16 as soon as the staple is formed, and that the remaining travelvof these slides is effected by means of the springs 23, so that the slides and the feelers may adjust themselves to any unevenness of 'the'surface in the keg or barrel, which would not be possible if these parts were positively actuated for their entire movement. It will also be understood that .the positions of the bands or hoops vary somewhat, and that the rpose of the feeldriven.

' The advantages of my inyention will be apparent. The mechanism is simple and positive in its character, and can be readily a plied to existin machines. By means of t is mechanism t e staples may be rapidly formed and driven, and by using the mechanisms in duplicate, as shown in the drawings, means are provided for repeatedly stapling the hoops, kegs or barrels.

1 claim: it

1. In staple driving mechanism, a pivoted housi or carrier, staple forming and driving mec anism carried thereby, means for actuating said mechanism, a locating device also carried by the housing orcarrier, and means for effecting a pivota movement of the housing or carrier to efl'ect the o eration of the locating device; substantial y as described.

2. In mechanism of the character. described, a housing or carrier capable of a swinging movement, means for effecting such movement, sta le forming and driving mechanism carried y the housing or carrier and a" feeler orlocating device also carrie on--the housing or carrier, to stop the carrier when the fee or contacts with the ob ject to be secured withthe staple; substantially as described.

3. In mechanism of the character described, a pivoted housing or carrier, a shearing and staple forming device carried thereby, positive actuating connections for oscillating the carrier and for effecting a portion of the working stroke of said sta le forming device, and a spring for comp eting its working stroke, substantially as described.

4. In mechanism of the character described, a pivoted housing or carrier, staple forming and driving devices carried by the housing or carrier, means for actuating said devices, a locating device or feeler also carried by the housing or carrier, cam means for moving the housing or carrier in one direction, and a spring for movi thehousing or carrier in the reverse direction; substantially as described.

5. In mechanism of the character described, a pivoted housing or carrier, staple forming and driving means carried thereby, a lever arm extending upwardly from the housing or carrier and having a cam slot therefor, an actuating cross head having a pin engaging the cam slot to rock the housing or carrier in one direction on its pivot, a spring connected to the housing or carrier for moving it in the reverse direction, means actuated by the cross-head for actuating the sta is forming and driving devices, and a fee er or locating device also carried by the housing or carrier; substantially as described.

6. In mechanism of the character described, the combination of a reciprocating cross-head, a pivoted housing or carrier, staple forming and driving devices carried'by the housing or carrier and actuated by the cross-head, a feeler or locating device also carried by the housing or carrier, means for actuating the feeler, and means actuated by the cross-head for rocking the housing or carrier on its pivot; substantially as described.

7. In mechanism of the character described, the combination of a reciprocating cross head, a pivoted housing or carrier, a staple forming and driving device carried by the housing or carrier and actuated b the cross head wire feeding means on the cusing or carrier and also actuated by the move- ,ment of a cross head, and means to oscillate the carrier during each reciprocation oi the cross head; substantially as described.

8. In mechanism of the character described, the combination with a reciprocating cross-head, of a pivoted housing or carrier, staple-forming and driving devices carried by the housing or carrier and actuated by; the cross-head, wire feeding means on the cusing or carrier, and also actuated by the movement of the cross-head, and means for automatically moving the housing or carrier to bring the formed staple into pro er relation with the Work; substantially as escribed.

9. In mechanism of the character described, the combination of a reciprocating cross-head, a pivoted housing or carrier, staple forming and driving devices carried by the housing or carrier and actuated by the crosshead, a feeling or locating device carried by the housing or carrier, and mans for causing the staple forming and driving devices to adjust themselves to the object in which the staples are to be driven; substantially as described.

10. In mechanism of the character described, the combination of a vertical reciprocating cross head, a pivoted housing or carrier, a cutting and forming shde mounted to reciprocate 1n the housing or carrier, means carried by the cross head for actuating said slide, wire feeding mechanism also carried by the housing or carrier and actuated connection with the cross head, a feeler or locating device carried by the housing or carrier and means to oscillate the carrier durin each reciprocation of the cross head; su stantially as described.

p 11. In mechanism of the character described, the combination of a vertical reciprocating cross head, a pivoted housing or carrier, a staple cutting and forming slide mounted in ides of the housing or carrier, a pawl carried by the cross head and ar ranged to actuate said slide for a portion of its movement, means for then throwing the pawl out of operation, a spring actuatedby the cross head and completing the operation of the slide, and means to oscillate the carrier during each reciprocation of the cross head; substantially as described.

12. In mechanism of the character described, the combination of a vertically reciprocating cross-head, of two separately pivoted housings or carriers, staple forming and driving mechanism in each housin or carrier, means actuated by the cross-heagfor actuating the staple formin and driving mechanisms, a feeling or locating device carried by each housing or carrier, and means for moving the two hous' or casin toward and away from eac other; an stantially as described.

13. In a staple driving mechanism, a piv-.

oted housin or carrier, staple forming and driving mec anism carried thereby, means to reciprocate the said carrier, and means for oscillating the carrier during its reciprocation; substantially as descri ed.

14. In a staple driving mechanism, a pivoted housin or carrier, staple forming and drivin mec anism carried thereby, a cam carrie by the carrier, means to reciprocate the carrier and a projection engaging the cam to use ate the carrier during its reciprocatlon; substantially as descri In testimony whereof, I have hereunto set my hand.

. WILLIAM A. KILMER.

Witnesses: y

M. A. Bowman, T. D. Tan -Ln. 

